Method and information system for informing a driver of a vehicle regarding the availability of a communication link

ABSTRACT

In a method for informing a driver of a vehicle regarding the availability of a communication link of the vehicle to an external communication unit, a first service category and a second service category are provided which utilize the communication link, the availability of the communication link is checked for both service categories, and the result of the availability check is displayed graphically to the vehicle driver in one symbol for both service categories.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to Application No. 10 2015 007115.7, filed in the Federal Republic of Germany on May 30, 2015, whichis expressly incorporated herein in its entirety by reference thereto.

FIELD OF THE INVENTION

The present invention relates to a method and an information system forinforming a driver of a vehicle regarding the availability of acommunication link, as well as a vehicle and a computer program product.

BACKGROUND INFORMATION

In vehicles such as automobiles, trucks, or even motorcycles,communication capabilities are increasingly being installed that permitvarious functions. The driver is usually informed via an indicator onthe display of a communication unit or a navigation system about thestatus of the link.

BRIEF SUMMARY OF THE INVENTION

An object of the present invention is to improve the integration ofcommunication links. In the method of the present invention forinforming a driver of a vehicle regarding the availability of acommunication link of the vehicle to an external communication unit, afirst service category and a second service category are provided whichutilize the communication link, the availability of the communicationlink is checked for both service categories, and the result of theavailability check is displayed graphically in one symbol for bothservice categories to the vehicle driver.

The method of the present invention has the advantage that differentservices and or communication channels may easily be displayed togetherin one symbol or icon. This permits a compact representation of acomplex relationship for a new type of product, so-called colorful(infotainment) and gray (remote) services in a vehicle. The availabilityof a communication link is understood here to be both the physicalconnection, such as a radio channel of a telecommunication connection,and a logical connection like, for example, a possiblypassword-protected access authorization or a functionality to be paidfor. Accordingly, the check of the availability may include bothcomponents, that is, the physical and the logical connectivity. Sincethese details are not known or at least at first glance are not relevantfor the driver, an information reduction is carried out here, which isable to increase both safety and ease of operation. The informationreduction is further improved by displaying the results for both servicecategories graphically in one symbol.

Two communication links may be provided, the first service categoryutilizing a first of the two communication links, and the second servicecategory utilizing a second of the two communication links. For example,for organizational reasons or for safety reasons, two or morecommunication links may be provided in order to separate the servicecategories from each other. The method is especially suitable for suchsituations, since several channels may be processed separately from eachother, that is, may be checked separately from each other and thendisplayed together in one symbol.

One of the two communication links may run via a mobile communicationunit like, for example, a cell phone or tablet. For reasons of securityand because of billing arrangements, personal or personalized additionalservices, e.g., for the functions navigation or entertainment, inparticular may be linked into the vehicle via a cell phone of thedriver. To that end, the cell phone is connected via a data connectionsuch as Bluetooth, WLAN or USB to the vehicle, usually a control deviceof the vehicle. Such a connection may also be tested for availabilityand the result displayed.

The first service category may provide infotainment functions. Thisincludes, for example, typical Internet functions such as browsing,optional image representations in the navigation system or personalnavigation points (POI, points of interest). In the symbol or icon fordisplaying the availability of the first service category, accordingly,the letter I may be used which, for example, is shown fully or in colorin the case of availability, or is grayed out or faded out if there isno availability. Typically, such infotainment functions originate withthe user or driver of the vehicle, thus, are usually started inside thevehicle.

The second service category may provide remote functions. For the mostpart, these include services which are controlled from outside via thecell phone of the driver like, for example, checking the tank capacity,remote battery charging (remote control of the state of charge in thecase of a hybrid or electric-powered vehicle), geo-fencing (establishinga virtual fence or area), and so forth. In the symbol or icon fordisplaying the availability of the second service category, accordingly,the letter R may be used which, for example, is shown fully or in colorin the case of availability, or is grayed out or faded out if there isno availability. Typically, such remote functions originate with theuser or driver outside of the vehicle, thus, are usually startedexternally of the vehicle. The display of the availability of thisservice or this service category in the vehicle allows the driver apreview as to whether these services will be available upon leaving thevehicle.

The first service category may be initiated from inside the vehicle andthe second service category may be initiated from outside the vehicle.Therefore, all possibilities of setting up a connection are included anddisplayed in one symbol. Thus, a complete coverage of the services isgiven. A pictorial representation may include an outgoing arrow forservices initiated from inside the vehicle and an incoming arrow forservices initiated from outside the vehicle.

The information system according to the present invention for a vehicleto inform a driver of a vehicle regarding the availability of acommunication link of the vehicle to an external communication unit fora first service category and a second service category includes unitswhich are designed to carry out the steps of the method described above.The same advantages and modifications hold true as previously described.

A touch-sensitive display may be provided, which is set up tographically represent the result of the availability check in the formof a symbol, and in response to the symbol being touched, to displayfurther information regarding the communication link and/or the servicecategories. When necessary, the reduction in detail may thereby beundone again, and details concerning the links, services, or theiravailabilities may be indicated. For example, when a link, a servicecategory and/or an individual service of a service category is notavailable, the reason may be displayed in detail.

A display of an infotainment system and a control device may be providedfor carrying out the method described above. Thus, already-existingcomponents may be used, which simplifies the implementation of themethod.

The vehicle according to the present invention includes an informationsystem as previously described. The same advantages and modificationshold true as described above.

The computer program product of the present invention includes programcode for carrying out the method described above, when the programproduct is executed on a device or an information system. The sameadvantages and modifications hold true as previously described.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a block diagram of an information system according to afirst exemplary embodiment of the invention.

FIG. 2 shows a block diagram of an information system according to asecond exemplary embodiment of the invention.

FIG. 3 shows an exemplary representation of a display of an informationdevice.

FIG. 4 shows exemplary representations of an icon for displaying theresult of the availability check.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows an information system 10 for a vehicle. Information system10 includes a control device 12, also called head unit, for infotainmentfunctions or services. These functions include, inter alia, navigationservices and audio and/or video playback. Control device 12 may also bean isolated control device for one of the functions, e.g., navigation.

Furthermore, a display 14 is provided, which communicates with controldevice 12 in order to show data from control device 12 on display 14.For example, display 14 displays navigation data, audio data and/orinformation regarding the vehicle. Display 14 may be touch-sensitive orproximity-sensitive, so that inputs may also be carried out via display14. Display 14 and control device 12 may be one unit.

A telematic control device 16 is connected to control device 12, e.g.,via a bus system such as CAN. A communication protocol such as, forexample, BAP (operation-display protocol) is installed on it thatpermits the exchange of data between the two devices. Telematic controldevice 16 is responsible for telematic functions such as remoteservices, for instance. Remote services presume that the vehicle isreachable, and are initiated, for example, from a cell phone outside ofthe vehicle. For instance, such remote services include remote batterycharging or geo-fencing-virtual fence.

The definition of a virtual boundary and the automated triggering of anaction owing to the crossing of the boundary on the earth's surface areidentified with geo-fencing. In most cases, the boundary defines anenclosed area, so that it is possible to differentiate between insideand outside. For instance, upon entering into the area or upon leavingthe area, a notification may be triggered. To that end, the objectobserved must transmit its position at regular intervals, or must permitthe request of its information from outside. This position fixing may becarried out via the cellular radio system on the radio-cell level or viaa navigation satellite system based on coordinates. For example, thisallows the monitoring of the operating area of vehicles, e.g., of acompany fleet or of rental cars. In the case of rental cars, with theaid of geo-fencing, it is ensured that the vehicles are only used withinthe country.

Functions or data of telematic control device 16 are also displayable ondisplay 14.

A mobile communication unit 18 of the driver or of a passenger islocated within the vehicle and communicates with control device 12. Tothat end, for example, the two units are connected to each other viaWLAN, USB or Bluetooth. Mobile communication unit 18, e.g., a smartphone or tablet, creates a gateway or a first communication link 20 fordata exchange between the vehicle, such as an infotainment or navigationsystem of the vehicle, and an external communication unit like a webserver, for instance.

A first service category is implemented or made available via firstcommunication link 20. The first service category is referred to here asinfotainment, and furnishes infotainment services or functions such as atypical internet usage with internet browsing, Street View and personalPOIs, for example. Infotainment services are typically triggered orinitiated from the vehicle, that is, internal to the vehicle.

Via a second communication link 22, the vehicle, or rather telematiccontrol device 16, is connected to a further external communication unitsuch as the back end of the vehicle manufacturer, for example. A secondservice category is implemented or made available via secondcommunication link 22. The second service category is referred to hereas remote, and provides remote services or functions. Remote servicesare typically triggered or initiated from outside the vehicle, that is,external to the vehicle. This initiating may be accomplished through thesmart phone of the driver or through the back end.

The two service categories use different communication links 20, 22having different physical channels and logical properties or protocols.Availability of the respective link is necessary in order to use theservices. To indicate the status of the two communication links 20, 22to the driver, first of all, both availabilities are checked. Inaddition to the purely physical connection check, this also includes alogical connection check, for example, access authorizations, passwords,the existence of connection quotas and the like.

The result of the check is displayed to the driver in a single symbol oricon 24 on display 14. Often, the driver is not aware of or familiarwith the different communication links 20, 22, so that the display ofinherently separate communication links 20, 22 in one symbol reduces thecomplexity for the driver. In addition, reducing the informationrelieves the driver of stress, since only the result of two complex linkchecks is displayed in one symbol. For example, the display may beimplemented by the letters I (infotainment services) and R (remoteservices). A full or displayed letter may then indicate availability,while a grayed-out or not fully displayed letter indicates noavailability.

FIG. 2 shows a further exemplary embodiment of an information system110, which in design resembles information system 10 from FIG. 1. Here,first and second communication links 20 and 22 are combined in onecommunication link 200. Communication link 200 originates from telematiccontrol device 16. Both service categories I, R use shared communicationlink 200 here. In this case, data from or to control device 12 istransmitted via telematic control device 16. The term sharedcommunication link 200 here means mainly the identical communicationendpoint at the vehicle. The other communication endpoints may bedifferent, for example, back end and web server. The availability ofboth service categories, or rather their complete communication links,must be checked correspondingly in the case of this exemplaryembodiment, as well.

FIG. 3 shows, by way of example, a screen display of display 14. Symbol24 for representing the results of the two availability checks for thetwo service categories I, R, or rather their communication links, isshown in an upper status bar. Thus, the driver is able to discern thestatus of the service availability at a glance. In response toactivation of the symbol, a menu or an information unit having detailedinformation with regard to the services and/or their availability may beopened.

FIG. 4 shows, illustratively, a plurality of examples of the symbol 24for display in display 14. Symbol or icon 24 a indicates theavailability of both services I, R, while symbol 24 b indicates theavailability of service R and the non-availability of service I. Inaddition, the overall system in which the two service categories areprovided is identified by lettering, e.g., Car-Net, in this example.

Symbol 24 c shows a further exemplary representation of the availabilityof both services, as well as the name of the overall system. The middlestreet-like representation symbolizes service category I. The rightrepresentation of a stylized cell phone symbolizes service category R.

Symbols 24 d and 24 e show further representations, both servicecategories I and R being available according to symbol 24 d, whileaccording to symbol 24 e, only service category R is available.

Symbol 24 f, as an outgoing arrow, symbolizes service category I beingavailable. The outgoing arrow is selected, since connections of theservice category “infotainment” originate within the vehicle. Symbol 24f, as incoming arrow, symbolizes service category R available here. Theincoming arrow is selected, since connections of the service category“remote” originate outside of the vehicle. The terms incoming andoutgoing relate to the vehicle which, for the purpose of illustration,is located between the two arrows.

Symbol 24 g shows a further representation of the availability of bothservice categories I and R in a single symbol. Both service categoriesare available here, which is indicated by the fact that neither arrow isgrayed out, but rather both are shown in full color.

What is claimed is:
 1. A method for informing a driver of a vehicleregarding the availability of at least one communication link of thevehicle to an external communication unit, wherein a first servicecategory and a second service category are provided which utilize the atleast one communication link, the method comprising: checking, by acontroller, the availability of the at least one communication link forboth the first and second service categories; and graphicallydisplaying, by a display device, to the vehicle driver the result of theavailability check in one symbol for both the first and second servicecategories.
 2. The method as recited in claim 1, wherein twocommunication links are provided, the first service category utilizing afirst of the two communication links, and the second service categoryutilizing a second of the two communication links.
 3. The method asrecited in claim 2, wherein one of the two communication links isprovided via a mobile communication unit.
 4. The method as recited inclaim 2, wherein the first service category provides infotainmentfunctions.
 5. The method as recited in claim 4, wherein the secondservice category provides remote functions.
 6. The method as recited inclaim 2, wherein the first service category is initiated from inside thevehicle, and the second service category is initiated from outside thevehicle.
 7. An information system for a vehicle, the information systembeing configured to inform a driver of a vehicle regarding theavailability of at least one communication link of the vehicle to anexternal communication unit, wherein a first service category and asecond service category are provided which utilize the at least onecommunication link, the information system comprising: a controllerchecking the availability of the at least one communication link forboth the first and second service categories; and a display devicegraphically displaying to the vehicle driver the result of theavailability check in the form of one symbol for both the first andsecond service categories.
 8. The information system as recited in claim7, wherein the display device is a touch-sensitive display configured to(i) graphically represent the result of the availability check in theform of one symbol, and (ii) in response to the symbol being touched, todisplay further information regarding at least one of the at least onecommunication link, the first service category and the second servicecategory.
 9. The information system as recited in claim 8, wherein thedisplay is part of an infotainment system.
 10. A non-transitory,computer-readable data storage medium storing a computer program havingprogram codes which, when executed on a computer, perform a method forinforming a driver of a vehicle regarding the availability of at leastone communication link of the vehicle to an external communication unit,wherein a first service category and a second service category areprovided which utilize the at least one communication link, the methodcomprising: checking, by a controller, the availability of the at leastone communication link for both the first and second service categories;and graphically displaying, by a display device, to the vehicle driverthe result of the availability check in one symbol for both the firstand second service categories.